(19)

(11)

EP 1 532 704 A2

(12)

(88) Date of publication A3: 24.03.2005 (43) Date of publication: 25.05.2005 Bulletin 2005/21 (21) Application number: 03736254.8 (22) Date of filing: 26.06.2003

(51) International Patent Classification (IPC)7: H01M 8/02 (86) International application number: PCT/JP2003/008101 (87) International publication number: WO 2004/004040 (08.01.2004 Gazette 2004/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 28.06.2002 JP 2002190047 (71) Applicant: Honda Giken Kogyo Kabushiki Kaisha Minato-ku,Tokyo 107-8556 (JP)	(72) Inventor: TSUNODA, Tadashi,c/o K.K.HONDA GIJYUTSU KENKYUSHO Wako-shi,Saitama 351-0193 (JP) (74) Representative: Piésold, Alexander J.  Frank B. Dehn & Co., 179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)